diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libsysdecode/Makefile | 4 | ||||
| -rw-r--r-- | lib/libsysdecode/errno.c | 209 | ||||
| -rw-r--r-- | lib/libsysdecode/sysdecode.3 | 1 | ||||
| -rw-r--r-- | lib/libsysdecode/sysdecode.h | 2 | ||||
| -rw-r--r-- | lib/libsysdecode/sysdecode_abi_to_freebsd_errno.3 | 94 | ||||
| -rw-r--r-- | lib/libsysdecode/sysdecode_syscallnames.3 | 5 |
6 files changed, 312 insertions, 3 deletions
diff --git a/lib/libsysdecode/Makefile b/lib/libsysdecode/Makefile index 75a9e31ad785..742c513469fe 100644 --- a/lib/libsysdecode/Makefile +++ b/lib/libsysdecode/Makefile @@ -5,15 +5,17 @@ PACKAGE=lib${LIB} LIB= sysdecode -SRCS= ioctl.c syscallnames.c utrace.c +SRCS= errno.c ioctl.c syscallnames.c utrace.c INCS= sysdecode.h CFLAGS+= -I${.CURDIR}/../../sys MAN+= sysdecode.3 \ + sysdecode_abi_to_freebsd_errno.3 \ sysdecode_ioctlname.3 \ sysdecode_syscallnames.3 \ sysdecode_utrace.3 +MLINKS+= sysdecode_abi_to_freebsd_errno.3 sysdecode_freebsd_to_abi_errno.3 CLEANFILES= ioctl.c diff --git a/lib/libsysdecode/errno.c b/lib/libsysdecode/errno.c new file mode 100644 index 000000000000..1e863bb69dc2 --- /dev/null +++ b/lib/libsysdecode/errno.c @@ -0,0 +1,209 @@ +/*- + * Copyright (c) 2015 John H. Baldwin <jhb@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <errno.h> +#include <limits.h> +#include <stdio.h> +#include <sysdecode.h> + +#if defined(__i386__) || defined(__amd64__) +/* + * Linux syscalls return negative errno's, we do positive and map them + * Reference: + * FreeBSD: src/sys/sys/errno.h + * Linux: linux-2.6.17.8/include/asm-generic/errno-base.h + * linux-2.6.17.8/include/asm-generic/errno.h + */ +static int bsd_to_linux_errno[ELAST + 1] = { + -0, -1, -2, -3, -4, -5, -6, -7, -8, -9, + -10, -35, -12, -13, -14, -15, -16, -17, -18, -19, + -20, -21, -22, -23, -24, -25, -26, -27, -28, -29, + -30, -31, -32, -33, -34, -11,-115,-114, -88, -89, + -90, -91, -92, -93, -94, -95, -96, -97, -98, -99, + -100,-101,-102,-103,-104,-105,-106,-107,-108,-109, + -110,-111, -40, -36,-112,-113, -39, -11, -87,-122, + -116, -66, -6, -6, -6, -6, -6, -37, -38, -9, + -6, -6, -43, -42, -75,-125, -84, -95, -16, -74, + -72, -67, -71 +}; +#endif + +#if defined(__aarch64__) || defined(__amd64__) +#include <compat/cloudabi/cloudabi_syscalldefs.h> + +static const int cloudabi_errno_table[] = { + [CLOUDABI_E2BIG] = E2BIG, + [CLOUDABI_EACCES] = EACCES, + [CLOUDABI_EADDRINUSE] = EADDRINUSE, + [CLOUDABI_EADDRNOTAVAIL] = EADDRNOTAVAIL, + [CLOUDABI_EAFNOSUPPORT] = EAFNOSUPPORT, + [CLOUDABI_EAGAIN] = EAGAIN, + [CLOUDABI_EALREADY] = EALREADY, + [CLOUDABI_EBADF] = EBADF, + [CLOUDABI_EBADMSG] = EBADMSG, + [CLOUDABI_EBUSY] = EBUSY, + [CLOUDABI_ECANCELED] = ECANCELED, + [CLOUDABI_ECHILD] = ECHILD, + [CLOUDABI_ECONNABORTED] = ECONNABORTED, + [CLOUDABI_ECONNREFUSED] = ECONNREFUSED, + [CLOUDABI_ECONNRESET] = ECONNRESET, + [CLOUDABI_EDEADLK] = EDEADLK, + [CLOUDABI_EDESTADDRREQ] = EDESTADDRREQ, + [CLOUDABI_EDOM] = EDOM, + [CLOUDABI_EDQUOT] = EDQUOT, + [CLOUDABI_EEXIST] = EEXIST, + [CLOUDABI_EFAULT] = EFAULT, + [CLOUDABI_EFBIG] = EFBIG, + [CLOUDABI_EHOSTUNREACH] = EHOSTUNREACH, + [CLOUDABI_EIDRM] = EIDRM, + [CLOUDABI_EILSEQ] = EILSEQ, + [CLOUDABI_EINPROGRESS] = EINPROGRESS, + [CLOUDABI_EINTR] = EINTR, + [CLOUDABI_EINVAL] = EINVAL, + [CLOUDABI_EIO] = EIO, + [CLOUDABI_EISCONN] = EISCONN, + [CLOUDABI_EISDIR] = EISDIR, + [CLOUDABI_ELOOP] = ELOOP, + [CLOUDABI_EMFILE] = EMFILE, + [CLOUDABI_EMLINK] = EMLINK, + [CLOUDABI_EMSGSIZE] = EMSGSIZE, + [CLOUDABI_EMULTIHOP] = EMULTIHOP, + [CLOUDABI_ENAMETOOLONG] = ENAMETOOLONG, + [CLOUDABI_ENETDOWN] = ENETDOWN, + [CLOUDABI_ENETRESET] = ENETRESET, + [CLOUDABI_ENETUNREACH] = ENETUNREACH, + [CLOUDABI_ENFILE] = ENFILE, + [CLOUDABI_ENOBUFS] = ENOBUFS, + [CLOUDABI_ENODEV] = ENODEV, + [CLOUDABI_ENOENT] = ENOENT, + [CLOUDABI_ENOEXEC] = ENOEXEC, + [CLOUDABI_ENOLCK] = ENOLCK, + [CLOUDABI_ENOLINK] = ENOLINK, + [CLOUDABI_ENOMEM] = ENOMEM, + [CLOUDABI_ENOMSG] = ENOMSG, + [CLOUDABI_ENOPROTOOPT] = ENOPROTOOPT, + [CLOUDABI_ENOSPC] = ENOSPC, + [CLOUDABI_ENOSYS] = ENOSYS, + [CLOUDABI_ENOTCONN] = ENOTCONN, + [CLOUDABI_ENOTDIR] = ENOTDIR, + [CLOUDABI_ENOTEMPTY] = ENOTEMPTY, + [CLOUDABI_ENOTRECOVERABLE] = ENOTRECOVERABLE, + [CLOUDABI_ENOTSOCK] = ENOTSOCK, + [CLOUDABI_ENOTSUP] = ENOTSUP, + [CLOUDABI_ENOTTY] = ENOTTY, + [CLOUDABI_ENXIO] = ENXIO, + [CLOUDABI_EOVERFLOW] = EOVERFLOW, + [CLOUDABI_EOWNERDEAD] = EOWNERDEAD, + [CLOUDABI_EPERM] = EPERM, + [CLOUDABI_EPIPE] = EPIPE, + [CLOUDABI_EPROTO] = EPROTO, + [CLOUDABI_EPROTONOSUPPORT] = EPROTONOSUPPORT, + [CLOUDABI_EPROTOTYPE] = EPROTOTYPE, + [CLOUDABI_ERANGE] = ERANGE, + [CLOUDABI_EROFS] = EROFS, + [CLOUDABI_ESPIPE] = ESPIPE, + [CLOUDABI_ESRCH] = ESRCH, + [CLOUDABI_ESTALE] = ESTALE, + [CLOUDABI_ETIMEDOUT] = ETIMEDOUT, + [CLOUDABI_ETXTBSY] = ETXTBSY, + [CLOUDABI_EXDEV] = EXDEV, + [CLOUDABI_ENOTCAPABLE] = ENOTCAPABLE, +}; +#endif + +int +sysdecode_abi_to_freebsd_errno(enum sysdecode_abi abi, int error) +{ + + switch (abi) { + case SYSDECODE_ABI_FREEBSD: + case SYSDECODE_ABI_FREEBSD32: + return (error); +#if defined(__i386__) || defined(__amd64__) + case SYSDECODE_ABI_LINUX: + case SYSDECODE_ABI_LINUX32: { + unsigned int i; + + /* + * This is imprecise since it returns the first + * matching errno. + */ + for (i = 0; i < nitems(bsd_to_linux_errno); i++) { + if (error == bsd_to_linux_errno[i]) + return (i); + } + break; + } +#endif +#if defined(__aarch64__) || defined(__amd64__) + case SYSDECODE_ABI_CLOUDABI64: + if (error >= 0 && + (unsigned int)error < nitems(cloudabi_errno_table)) + return (cloudabi_errno_table[error]); + break; +#endif + default: + break; + } + return (INT_MAX); +} + +int +sysdecode_freebsd_to_abi_errno(enum sysdecode_abi abi, int error) +{ + + switch (abi) { + case SYSDECODE_ABI_FREEBSD: + case SYSDECODE_ABI_FREEBSD32: + return (error); +#if defined(__i386__) || defined(__amd64__) + case SYSDECODE_ABI_LINUX: + case SYSDECODE_ABI_LINUX32: + if (error >= 0 && error <= ELAST) + return (bsd_to_linux_errno[error]); + break; +#endif +#if defined(__aarch64__) || defined(__amd64__) + case SYSDECODE_ABI_CLOUDABI64: { + unsigned int i; + + for (i = 0; i < nitems(cloudabi_errno_table); i++) { + if (error == cloudabi_errno_table[i]) + return (i); + } + break; + } +#endif + default: + break; + } + return (INT_MAX); +} + diff --git a/lib/libsysdecode/sysdecode.3 b/lib/libsysdecode/sysdecode.3 index f058f59c60cf..ab7e972b2f93 100644 --- a/lib/libsysdecode/sysdecode.3 +++ b/lib/libsysdecode/sysdecode.3 @@ -64,6 +64,7 @@ Supported on aarch64 and amd64. A placeholder for use when the ABI is not known. .El .Sh SEE ALSO +.Xr sysdecode_abi_to_freebsd_errno 3 , .Xr sysdecode_ioctlname 3 , .Xr sysdecode_syscallnames 3 , .Xr sysdecode_utrace 3 diff --git a/lib/libsysdecode/sysdecode.h b/lib/libsysdecode/sysdecode.h index fa00716826db..8a30206f66fb 100644 --- a/lib/libsysdecode/sysdecode.h +++ b/lib/libsysdecode/sysdecode.h @@ -38,6 +38,8 @@ enum sysdecode_abi { SYSDECODE_ABI_CLOUDABI64 }; +int sysdecode_abi_to_freebsd_errno(enum sysdecode_abi _abi, int _error); +int sysdecode_freebsd_to_abi_errno(enum sysdecode_abi _abi, int _error); const char *sysdecode_ioctlname(unsigned long _val); const char *sysdecode_syscallname(enum sysdecode_abi _abi, unsigned int _code); int sysdecode_utrace(FILE *_fp, void *_buf, size_t _len); diff --git a/lib/libsysdecode/sysdecode_abi_to_freebsd_errno.3 b/lib/libsysdecode/sysdecode_abi_to_freebsd_errno.3 new file mode 100644 index 000000000000..74826f8e20ce --- /dev/null +++ b/lib/libsysdecode/sysdecode_abi_to_freebsd_errno.3 @@ -0,0 +1,94 @@ +.\" +.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org> +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd February 23, 2016 +.Dt sysdecode_abi_to_freebsd_errno 3 +.Os +.Sh NAME +.Nm sysdecode_abi_to_freebsd_errno , +.Nm sysdecode_freebsd_to_abi_errno +.Nd translate error numbers between process ABIs +.Sh LIBRARY +.Lb libsysdecode +.Sh SYNOPSIS +.Ft int +.Fn sysdecode_abi_to_freebsd_errno "enum sysdecode_abi abi" "int error" +.Ft int +.Fn sysdecode_freebsd_to_abi_errno "enum sysdecode_abi abi" "int error" +.Sh DESCRIPTION +The +.Fn sysdecode_abi_to_freebsd_errno +function returns the native +.Xr errno 3 +value that corresponds to the error indicated by +.Fa error +for the process ABI +.Fa abi . +If +.Fa error +does not identify a valid error for +.Fa abi , +.Dv INT_MAX +is returned. +.Pp +The +.Fn sysdecode_freebsd_to_abi_errno +function the error value for the process ABI +.Fa abi +that corresponds to the native +.Xr errno 3 +value +.Fa error . +If +.Fa error +does not identify a valid +.Xr errno 3 +error, +.Dv INT_MAX +is returned. +.Pp +Note that the mappings between native +.Xr errno 3 +values and errors for other ABIs are not exhaustive. +If a mapping does not exist, +these functions return +.Dv INT_MAX . +In addition, multiple error values in one ABI may map to a single +error in another ABI. +.Sh RETURN VALUES +These functions return an error value on success or +.Dv INT_MAX +if +.Fa error +is not valid. +.Pp +For the list of supported ABIs, +see +.Xr sysdecode 3 . +.Sh SEE ALSO +.Xr sysdecode 3 , +.Xr sysdecode_syscallnames 3 diff --git a/lib/libsysdecode/sysdecode_syscallnames.3 b/lib/libsysdecode/sysdecode_syscallnames.3 index 1c75ab6e9d17..e920edb29c55 100644 --- a/lib/libsysdecode/sysdecode_syscallnames.3 +++ b/lib/libsysdecode/sysdecode_syscallnames.3 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 24, 2016 +.Dd January 30, 2016 .Dt sysdecode_syscallnames 3 .Os .Sh NAME @@ -64,4 +64,5 @@ or .Fa ABI is invalid . .Sh SEE ALSO -.Xr sysdecode 3 +.Xr sysdecode 3 , +.Xr sysdecode_abi_to_freebsd_errno 3 |